Grade 6 Science Worksheets

Learning Objectives

• Explain how birth rates and death rates affect population size over time
• Describe how resource availability can increase or decrease populations
• Use population data patterns to infer changes in environmental conditions

Learning Objectives

• Explain how carbon dioxide, water, and gases from the atmosphere provide raw materials for plant growth
• Describe how roots, leaves, and plant cells use environmental inputs to build biomass
• Use evidence from text to answer questions about matter entering and leaving plant systems

Learning Objectives

• Explain how photosynthesis converts light energy into chemical energy stored in glucose and other carbon-based molecules.
• Describe the roles of water, carbon dioxide, and sunlight in the light-dependent steps and the Calvin cycle.
• Identify oxygen as a byproduct of photosynthesis and explain how photosynthesis supports life on Earth.

Learning Objectives

• Explain how carbon atoms cycle through air, water, and living organisms in an ecosystem
• Distinguish between matter cycling (conservation of atoms) and energy flow (one-way transformation)
• Describe how carbon moves from plants to animals and returns to the environment through respiration and decomposition

Learning Objectives

• Explain how limiting resources affect population size in ecosystems.
• Identify examples of limiting resources such as water, nutrients, or space.
• Describe how organisms may respond to scarcity, but why population growth eventually slows.

Learning Objectives

• Explain how photosynthesis provides energy and matter for plant growth.
• Describe why plants store chemical energy and how they use it when light is limited.
• Identify how plant structures change over time through ongoing energy transformations and matter use.

Learning Objectives

• Explain how energy moves through ecosystems using producers, consumers, and decomposers.
• Describe how a food web shows multiple energy pathways compared with a single food chain.
• Use trophic level vocabulary to trace energy transfer between organisms.

Learning Objectives

• Explain how food molecules provide both building materials and stored energy in the body.
• Describe how digestion breaks large food molecules into smaller molecules that can be absorbed.
• Identify how different food molecules (proteins, carbohydrates, fats) meet different needs of cells.+ Show more

Learning Objectives

• Explain how energy moves through trophic levels in an ecosystem
• Describe why usable energy decreases at each step in a food chain
• Use energy-flow reasoning to predict ecosystem patterns at higher trophic levels

Learning Objectives

• Explain how decomposers recycle matter in ecosystems by breaking down dead organisms and waste
• Describe how atoms and nutrients move from living things to nonliving parts of an ecosystem (soil and water) and back to producers
• Compare the roles of decomposers and producers in maintaining ecosystem functioning

Learning Objectives

• Explain how competition for limited resources can affect survival and reproduction
• Describe direct and indirect competition and give examples
• Use cause-and-effect reasoning to connect resource availability to population changes

Learning Objectives

• Explain how chemical energy in food molecules is transformed to power life processes.
• Describe how energy is conserved in organisms as it changes form (useful energy and heat).
• Use evidence from a scientific passage to support claims about how feeding supports sustained functioning.

Learning Objectives

• Explain what cellular respiration is and why cells need it
• Describe the role of oxygen and the release of energy during cellular respiration
• Identify how matter changes during respiration and how wastes are produced

Learning Objectives

• Explain how photosynthesis provides carbon-based molecules that plants use to build new tissues.
• Describe how carbohydrates, proteins, and fats contribute to plant structure and function.
• Connect plant biomass growth to a continuous supply of matter and energy through chemical processes.

Learning Objectives

• Explain how animals need both matter and energy to live, grow, and function
• Describe how food provides matter that becomes parts of an animal’s body
• Describe how food provides energy that supports life processes such as movement and maintaining body temperature+ Show more

Learning Objectives

• Understand the interactions between predators and prey in ecosystems.
• Identify cause-and-effect relationships in food webs.
• Explain how predator and prey populations influence each other over time.+ Show more

Learning Objectives

• Understand the key life processes that occur within cells, including photosynthesis and cellular respiration.
• Describe how diffusion and transport mechanisms support material movement across cell membranes.
• Explain how these processes maintain conditions necessary for growth, repair, and reproduction in organisms.

Learning Objectives

• Understand the role of decomposers in nutrient cycling within ecosystems.
• Identify different types of decomposers such as fungi and bacteria.
• Explain how decomposers contribute to soil and water health.+ Show more

Learning Objectives

• Understand how matter cycles through living and non-living components of ecosystems.
• Identify the roles of plants, consumers, and waste in matter redistribution.
• Explain the concept of reservoirs and flows in matter cycles.+ Show more

Learning Objectives

• Understand how organisms compete for limited resources in their environment.
• Identify different types of competition among species and within populations.
• Explain how resource competition influences population dynamics and community composition.+ Show more

Learning Objectives

• Understand the structure and function of the circulatory system.
• Identify the roles of arteries, veins, and capillaries in blood transport.
• Explain how the heart's rhythmic pumping creates blood pressure.+ Show more

Learning Objectives

• Identify the main parts of a cell and their functions.
• Describe the roles of the cell membrane, cytoplasm, nucleus, and organelles.
• Explain how cell parts work together to support life processes.+ Show more

Learning Objectives

• Understand the hierarchical organization of organisms from cells to body systems.
• Identify the functions of different body structures and their contribution to overall health.
• Explain how changes in one level of body organization can affect the entire system.+ Show more

Learning Objectives

• Understand the basic structure of the atmosphere and how it influences weather patterns.
• Identify how air-mass interactions and fronts affect regional climates.
• Explain the role of pressure systems, wind patterns, and heat transfer in weather formation.+ Show more

Learning Objectives

• Explain how a scientific model can lead to a testable prediction.
• Describe how observations either support a prediction or show where a model needs revision.
• Use criteria and uncertainty to evaluate results and communicate confidence in findings.

Learning Objectives

• Explain why scientists use models to represent systems that are too large, too small, or too complex to study directly.
• Describe how effective scientific models connect observable features to underlying ideas and clarify what the model can and cannot represent.
• Use evidence from measurements to compare model outputs to real data and identify limitations.

Learning Objectives

• Explain how scientific inquiry begins with careful observations and leads to testable questions
• Identify how measurement and evidence support reliable explanations in investigations
• Use logical reasoning to connect results to conclusions and communicate findings clearly

Learning Objectives

• Understand different types of natural resources and their regional distribution.
• Analyze the environmental and economic impacts of resource extraction and use.
• Evaluate sustainable practices such as recycling, reclamation, and alternative energy.+ Show more

Learning Objectives

• Differentiate accuracy and precision in scientific measurements
• Select appropriate measurement tools and units for data collection
• Explain how systematic and random errors affect measurement results+ Show more

Learning Objectives

• Explain how scientific claims should be supported by relevant evidence
• Distinguish correlation from causation in data-based reasoning
• Use units, measurements, and observations consistently to strengthen explanations+ Show more

Learning Objectives

• Explain how scientific knowledge changes when new evidence becomes available.
• Differentiate scientific theories from scientific laws using examples.
• Describe how peer evaluation and reproducibility strengthen scientific claims.

Learning Objectives

• Identify and describe physical and chemical properties used to classify minerals.
• Distinguish between igneous, sedimentary, and metamorphic rocks based on textural and compositional features.
• Explain the processes involved in the formation of different rock types and their relevance to Earth's history.+ Show more

Learning Objectives

• Understand principles of relative and absolute dating used in geology.
• Identify and interpret key features of the geologic time scale and fossil succession.
• Explain the methods of correlation and radiometric techniques to determine Earth's history.+ Show more

Learning Objectives

• Explain how producers, consumers, and decomposers relate to trophic levels and energy flow
• Identify the correct trophic level for different organisms based on what they eat
• Describe how energy transfer between trophic levels affects ecosystem structure and populations+ Show more

Learning Objectives

• Explain how environmental conditions affect which traits help organisms survive and reproduce.
• Describe how changes in survival and reproduction can shift traits in a population over generations.
• Connect adaptation to ecosystem change and resilience when resources or conditions shift.

Learning Objectives

• Explain the orbital motions of planets and the Moon within the solar system.
• Describe how Earth's tilt and revolution cause seasonal changes.
• Interpret the phases of the Moon and their relation to the Sun and Earth.+ Show more

Learning Objectives

• Understand various observational techniques and instruments used in space science.
• Identify the functions of ground-based and orbital telescopes, space probes, and satellites.
• Describe spectral imaging, remote sensing, and data interpretation methods in space exploration.+ Show more

Learning Objectives

• Describe the internal layers of Earth and their characteristics.
• Explain how plate boundary types cause geological phenomena such as earthquakes and volcanoes.
• Identify examples of divergent, convergent, and transform boundaries and their surface features.+ Show more

Learning Objectives

• Describe the steps of the hydrologic cycle including evaporation, condensation, precipitation, runoff, infiltration, and groundwater discharge.
• Explain how surface and groundwater interact within watersheds and aquifers.
• Identify the processes that influence water availability and quality at regional scales.+ Show more

Learning Objectives

• Identify and describe common forms of energy including kinetic, potential, thermal, chemical, and electrical.
• Relate each form of energy to familiar phenomena such as moving objects, stretched springs, and batteries.
• Distinguish among different energy types based on their characteristics and associated everyday examples.+ Show more

Learning Objectives

• Understand different classification schemes for elements, compounds, and mixtures.
• Identify characteristics that distinguish pure substances from mixtures.
• Recognize common separation techniques like filtration and distillation.+ Show more

Learning Objectives

• Explain how structural traits help organisms obtain food, move efficiently, and avoid predation
• Identify examples of structural adaptations (e.g., shells, webbed feet, long roots, camouflage) and match them to functions
• Use evidence from observations to describe how traits relate to specific habitats

Learning Objectives

• Identify various science-related career pathways and their typical tasks.
• Understand the skills and coursework that support careers in science and technology.
• Recognize the roles of professionals such as biomedical technicians, environmental scientists, instrumentation engineers, and laboratory analysts.+ Show more

Learning Objectives

• Analyze how scientific data informs public health measures, environmental policies, and resource management.
• Evaluate societal changes resulting from scientific initiatives like water treatment, air quality monitoring, and vaccination campaigns.
• Interpret empirical indicators used to assess the effectiveness of societal interventions.+ Show more

Learning Objectives

• Understand how scientific investigation and technological development influence each other.
• Identify tools and instruments that extend observation and measurement in science.
• Explain how technological improvements can shape scientific inquiries and models.+ Show more

Learning Objectives

• Analyze decision-making processes that incorporate scientific evidence and technological options.
• Evaluate risk assessments, cost-benefit considerations, and stakeholder values in policymaking.
• Interpret data, weigh uncertainties, and justify choices transparently in societal contexts.+ Show more

Learning Objectives

• Explain how physiological adaptations help organisms survive in specific environments
• Identify examples of internal traits related to water balance, metabolism, and ion regulation
• Interpret statements about physiological adaptations as true or false+ Show more

Learning Objectives

• Explain what a niche is and how it describes an organism’s role in an ecosystem.
• Identify how different niches can allow two species to coexist in the same habitat.
• Analyze how niche overlap can increase competition when resources become limited.+ Show more